Currently mpt fusion does not handle IOMMU overflow (pci_map_sg returning 0)
very gracefully. It gets not reported to the upper layers. This patch fixes this.

As a related note the fusion driver tends to trigger the NMI watchdog as soon
as it goes into any error recovery, because it busy waits for seconds with
interrupts disabled (seems to be still true with the new error handling in 2.6).
This is a big inconvenient because it leads to a forced oops.

I tried to work around it by exporting touch_nmi_watchdog and using it in
the delays, but Linus was opposed to this approach. It would be nice
if someone could fix this. Afaik in 2.6 the error recovery should mostly
run in process context, so it should be possible to use schedule_timeout()
with interrupts on for the delays.

At least on x86-64 the NMI watchdog runs by default and even on i386 it is a
very useful debugging tool.

sound/pcmcia/vx/vx_entry.c:

This patch removes the PCMCIA timer release functionality which is no
longer required. Without this the module does not compile.

Too much cut-and-paste, noticed by Dmitry Torokhov <dtor_core@ameritech.net>

into samba.org:/home/paulus/kernel/for-linus-ppc

On PPC32 we reorder the arguments so they fit into 6 registers.  Glibc will
need a two-line stub to change them from the standard order to the ordering
used by the system call: (fd, advice, offset, len).

into samba.org:/home/paulus/kernel/for-linus-ppc

into samba.org:/stuff/paulus/kernel/for-linus-ppc

into samba.org:/stuff/paulus/kernel/for-linus-ppc

into samba.org:/stuff/paulus/kernel/for-linus-ppc

into samba.org:/stuff/paulus/kernel/for-linus-ppc

In both 2.4 and in 2.6, error handling for bad cdrom media is
wrong.  And it is my fault I'm afraid, since I botched an earlier
fix for the problem by putting the fix in the wrong spot.

My kids have a "Jumpstart Toddlers" cd they have long since
completely killed, which makes a great test disc.  Without this
fix, the best time projection I can get for completing a dd type
sector copy is about 2 years...  Most of that is spent thrashing
about in kernel space trying to re-read sectors we already know
are not correctable....  After the fix, I was able to rip a copy
the CD (or rather muddle through it getting lots of EIO errors)
in about 15 minutes.

Attached is the fix for 2.6.x,

into samba.org:/stuff/paulus/kernel/for-linus-ppc

of requiring users to select SCSI in order to see it.

into fys.uio.no:/home/linux/bitkeeper/nfsclient-2.5

From Christoph Hellwig

From David Mosberger:

> We definitely are seeing some strange crashes in get_ksymbol_core().
> I think the reason is the lack of iterator initialization.

Yes, looks good: reset the iterator at allocation.

Remove the PCMCIA release timer that got missed in earlier patch.  This
is required for successful compilation of the driver.

into fys.uio.no:/home/linux/bitkeeper/nfsclient-2.5

nfsroot_mount().

Problem analysis and fix provided by Andries Brouwer.
Cleanup of nfs_lookup() by me...

o inline assembler funcs cleanup
o machine depend header cleanup
o interrupt management fix

o build script update
o interrupt management fix
o mtd support fix
o signal handling fix

into home.osdl.org:/home/torvalds/v2.5/linux

into home.osdl.org:/home/torvalds/v2.5/linux

a valid SEP bit. The errata has it right: you have to have at
least model 3, stepping 3. Not "model >= 3 or stepping >= 3".

Fix the test accordingly.

into camp4.serpentine.com:/export/bos/bk/linux-early

into fys.uio.no:/home/linux/bitkeeper/nfsclient-2.5

ESTALE errors.

resent since you don't know whether the server is replying to the
first or the second transmission. However we're currently setting
the cutoff point to be the timeout of the first transmission.

This patch moves the cutoff point to the actual start of the
retransmission.

in line with what is done for TCP.

Signedness corrections when updating RTT.

Be conservative when calculating RTO. Round up the residues.

among other things, for the "soft" mount option.

that call_encode() may cause rq_rcv_buf to be reset despite the fact
that a reply might be delivered at any moment by a softirq.
   
This typically results in 'NFS: server cheating in read reply'
error messages.   

Solve by adding rq_private_buf, which is updated atomically from
rq_rcv_buf.

   - Ensure that we reset req->rq_received before resending if the
     server has sent us a garbage reply.

   - Whenever we grab the xprt_lock_write "semaphore" ensure that we
     reset req->rq_bytes_sent.

   - When resending a TCP request, do not interrupt in the
     middle of transmission even if we do get a reply from the server.

   - Protect the call to rpc_calc_rto() against modification while
     we are calculating

into home.osdl.org:/home/torvalds/v2.5/linux